Implement CachedMetadata handling on MojoAsyncResourceHandler

content/browser/loader/test_url_loader_client.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/loader/test_url_loader_client.h"
 
 #include "base/memory/ref_counted.h"
 #include "base/run_loop.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 27 matching lines @@
 
 void TestURLLoaderClient::OnDataDownloaded(int64_t data_length,
                                            int64_t encoded_data_length) {
   has_data_downloaded_ = true;
   download_data_length_ += data_length;
   encoded_download_data_length_ += encoded_data_length;
   if (quit_closure_for_on_data_downloaded_)
     quit_closure_for_on_data_downloaded_.Run();
 }
 
+void TestURLLoaderClient::OnReceiveCachedMetadata(
+    const std::vector<uint8_t>& data) {

[mmenke, 2017/01/17 18:39:57]

EXPECT_FALSE(has_received_cached_metadata_);
EXPECT_TRUE(cached_metadata_.empty());
EXPECT_TRUE(has_received_response_);
EXPECT_TRUE(response_body_.empty());
EXPECT_FALSE(response_body_.empty(has_received_completion_));

Can also add EXPECT_FALSE(has_received_cached_metadata_); to the events that
occur after this (Complete, StartLoadingResponseBody, DataDownloaded)

[yhirano, 2017/01/18 06:22:42]

I added former ones. I'll add latter ones in
https://codereview.chromium.org/2633123002/.

+  has_received_cached_metadata_ = true;
+  cached_metadata_ = data;
+  if (quit_closure_for_on_receive_cached_metadata_)
+    quit_closure_for_on_receive_cached_metadata_.Run();
+}
+
 void TestURLLoaderClient::OnTransferSizeUpdated(int32_t transfer_size_diff) {
   EXPECT_GT(transfer_size_diff, 0);
   body_transfer_size_ += transfer_size_diff;
 }
 
 void TestURLLoaderClient::OnStartLoadingResponseBody(
     mojo::ScopedDataPipeConsumerHandle body) {
   response_body_ = std::move(body);
   if (quit_closure_for_on_start_loading_response_body_)
     quit_closure_for_on_start_loading_response_body_.Run();
@@ skipping 18 matching lines @@
   binding_.Bind(&client_ptr_info, associated_group);
   return client_ptr_info;
 }
 
 void TestURLLoaderClient::Unbind() {
   binding_.Unbind();
   response_body_.reset();
 }
 
 void TestURLLoaderClient::RunUntilResponseReceived() {
+  if (has_received_response_)
+    return;
   base::RunLoop run_loop;
   quit_closure_for_on_receive_response_ = run_loop.QuitClosure();
   run_loop.Run();
   quit_closure_for_on_receive_response_.Reset();
 }
 
 void TestURLLoaderClient::RunUntilRedirectReceived() {
+  if (has_received_redirect_)
+    return;
   base::RunLoop run_loop;
   quit_closure_for_on_receive_redirect_ = run_loop.QuitClosure();
   run_loop.Run();
   quit_closure_for_on_receive_redirect_.Reset();
 }
 
 void TestURLLoaderClient::RunUntilDataDownloaded() {
+  if (has_data_downloaded_)
+    return;
   base::RunLoop run_loop;
   quit_closure_for_on_data_downloaded_ = run_loop.QuitClosure();
   run_loop.Run();
   quit_closure_for_on_data_downloaded_.Reset();
 }
 
+void TestURLLoaderClient::RunUntilCachedMetadataReceived() {
+  if (has_received_cached_metadata_)
+    return;
+  base::RunLoop run_loop;
+  quit_closure_for_on_receive_cached_metadata_ = run_loop.QuitClosure();
+  run_loop.Run();
+  quit_closure_for_on_receive_cached_metadata_.Reset();
+}
+
 void TestURLLoaderClient::RunUntilResponseBodyArrived() {
   if (response_body_.is_valid())
     return;
   base::RunLoop run_loop;
   quit_closure_for_on_start_loading_response_body_ = run_loop.QuitClosure();
   run_loop.Run();
   quit_closure_for_on_start_loading_response_body_.Reset();
 }
 
 void TestURLLoaderClient::RunUntilComplete() {
   if (has_received_completion_)
     return;
   base::RunLoop run_loop;
   quit_closure_for_on_complete_ = run_loop.QuitClosure();
   run_loop.Run();
   quit_closure_for_on_complete_.Reset();
 }
 
 }  // namespace content